Villagers stand in line as they wait for their children to receive the measles vaccine during the week-long national measles campaign, in 5 Bairro, a village in the Maputo province of Mozambique, Tuesday, May 24, 2011. The campaign aims to vaccinate 3.6 million children under the age of 5 against measles with the ultimate goal of eliminating the disease from the country. (Stuart Ramson/Insider Images for UN Foundation)